Re: [Nix-dev] /dev/shm inconsistency in chroot

[Ludovic Courtès]

Mark H Weaver <address@hidden> skribis:

> Shea Levy <address@hidden> writes:
>
>> On 01/24/2014 05:16 AM, Sree Harsha Totakura wrote:
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>>> On 01/23/2014 08:56 PM, Mark H Weaver wrote:
>>>> We should not inherit /dev from the host system at all, but rather
>>>> create it from scratch with just the things we need.  IMO, that's
>>>> the only truly proper solution.
>>> We can try creating a fixed set of device nodes, for example:
>>> /dev/null, /dev/random, /dev/urandom, /dev/sda etc.  Has anyone tried
>>> this before?
>>
>> Another option is to mount  a devtmpfs there, for systems which support it.
>
> The thing is, we don't actually want most of the system's devices to be
> in the build environment, do we?  These are all impurities.  I don't
> think we want /dev/sda, for example.

For the record, with
<https://github.com/NixOS/nix/commit/3fd01b171a74d28dc8e48b9ee5f2d0e9a3915fb8>,
the daemon creates /dev deterministically.  (This change landed in
guix-daemon with the latest ‘nix-upstream’ update.)

Ludo’.